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Boundary Cutting for Packet Classification
ABSTRACT:
Decision-tree-based packet classification algorithms such as HiCuts, HyperCuts,
and EffiCuts show excellent search performance by exploiting the geometrical
representation of rules in a classifier and searching for a geometric subspace to
which each input packet belongs. However, decision tree algorithms involve
complicated heuristics for determining the field and number of cuts. Moreover,
fixed interval-based cutting not relating to the actual space that each rule covers is
ineffective and results in a huge storage requirement. A new efficient packet
classification algorithm using boundary cutting is proposed in this paper. The
proposed algorithm finds out the space that each rule covers and performs the
cutting according to the space boundary. Hence, the cutting in the proposed
algorithm is deterministic rather than involving the complicated heuristics, and it is
more effective in providing improved search performance and more efficient in
memory requirement. For rule sets with 1000–100 000 rules, simulation results
show that the proposed boundary cutting algorithm provides a packet classification
through 10–23 on-chip memory accesses and 1–4 off-chip memory accesses in
average.

2. EXISTING SYSTEM:
 Our study analyzed various decision-tree-based packet classification
algorithms. If a decision tree is properly partitioned so that the internal tree
nodes are stored in an on-chip memory and a large rule database is stored in
an off-chip memory, the decision tree algorithm can provide very high-speed
search performance. Moreover, decision tree algorithms naturally enable
both the highest-priority match and the multimatch packet classification.
Earlier decision tree algorithms such as HiCuts and HyperCuts select the
field and number of cuts based on a locally optimized decision, which
compromises the search speed and the memory requirement. This process
requires a fair amount of preprocessing, which involves complicated
heuristics related to each given rule set.
DISADVANTAGES OF EXISTING SYSTEM:
 The computation required for the pre-processing consumes much memory
and construction time, making it difficult.
 Algorithms to be extended to large rule sets because of memory problems in
building the decision trees.
 The cutting is based on a fixed interval, which does not consider the actual
space that each rule covers; hence it is ineffective.
PROPOSED SYSTEM:

3.  In this paper, we propose a new efficient packet classification algorithm
based on boundary cutting. Cutting in the proposed algorithm is based on the
disjoint space covered by each rule.
 Hence, the packet classification table using the proposed algorithm is
deterministically built and does not require the complicated heuristics used
by earlier decision tree algorithms.
ADVANTAGES OF PROPOSED SYSTEM:
 The boundary cutting of the proposed algorithm is more effective than that
of earlier algorithms since it is based on rule boundaries rather than fixed
intervals. Hence, the amount of required memory is significantly reduced.
 Although BC loses the indexing ability at internal nodes, the binary search at
internal nodes provides good search performance
SYSTEM ARCHITECTURE:

4. SYSTEM REQUIREMENTS:
HARDWARE REQUIREMENTS:
 System : Pentium IV 2.4 GHz.
 Hard Disk : 40 GB.
 Floppy Drive : 1.44 Mb.
 Monitor : 15 VGA Colour.
 Mouse : Logitech.
 Ram : 512 Mb.
SOFTWARE REQUIREMENTS:
 Operating system : Windows XP/7.
 Coding Language : JAVA/J2EE
 IDE : Netbeans 7.4
 Database : MYSQL
REFERENCE:
Hyesook Lim, Nara Lee, Geumdan Jin, Jungwon Lee, Youngju Choi, and
Changhoon Yim,“Boundary Cutting for Packet Classification”,, VOL. 22, NO.
2, APRIL 2014.